Falkenstein Castle or Castrum Pfronten is a High Middle Ages castle ruin in the Bavarian Alps, near Pfronten, a town in southern Germany. The ruin's German name is Burg Falkenstein . At 1,268 metres above sea level, it is Germany's highest castle.
King Ludwig II of Bavaria purchased the ruin in 1883 and planned to transform the site into a magnificent fairy tale schloß. However, the plans were abandoned upon his death in 1886.
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